/* Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.activiti.engine.test.pvm;

import java.util.ArrayList;
import java.util.List;

import org.activiti.engine.impl.pvm.delegate.ExecutionListenerExecution;
import org.flowable.engine.delegate.DelegateExecution;
import org.flowable.engine.delegate.ExecutionListener;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * @author Tom Baeyens
 */
public class EventCollector implements ExecutionListener {

    private static final long serialVersionUID = 1L;

    private static final Logger LOGGER = LoggerFactory.getLogger(EventCollector.class);

    public List<String> events = new ArrayList<String>();

    public void notify(DelegateExecution execution) {
        notify((ExecutionListenerExecution) execution);
    }

    public void notify(ExecutionListenerExecution execution) {

        LOGGER.debug("collecting event: {} on {}", execution.getEventName(), execution.getEventSource());
        events.add(execution.getEventName() + " on " + execution.getEventSource());
    }

    public String toString() {
        StringBuilder text = new StringBuilder();
        for (String event : events) {
            text.append(event);
            text.append("\n");
        }
        return text.toString();
    }
}
